1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdf2e0434332c2c40df6706a4ff31be40292623191a2f1aa2d0c152e38010e7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ccf422b-84d4-41ae-aa3d-35847c1bd5ce.json and https://artists.proofprofile.net/proofs/artist/9ccf422b-84d4-41ae-aa3d-35847c1bd5ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c35890d6022184dd776957dab5b4d086efbe03f906cd74b15f92c5829fbcc1. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1468811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e1f9409e99f584b62e5ca7fa67b552a2659d46eb06380a59076e0924747906. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1468812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4179e248f2c6a89706a3722599230dcb676e9f98df609bb3cdd5e087a2f9a52. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1468813.
Você Não É Mais Planeta (Superstar) - Single
Educação Sentimental II (Superstar) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20f6df22720ed2b0b9781b99a8c5bb084fcad022e9c482875ddb787a6da9c70. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRGE1603258.
O Ficar e o Ir da Gente (Superstar) - Single
Plutão Já Foi Planeta no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54f0eef5de6b63df7a4de27c3a11413c983c4d6b8a59229ba816a1f77caa1c5. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRGE1700507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffd8254bb411d51fc5b26c18608d066be4ce0ec56dbd291cff41fe01e336126. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRGE1700508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaded64908d6e833cfb3f3fb12ab760e4af6ce8f2f5d81ee2373e2c1908e4170f. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRGE1700510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d765d8dc5e2a86e2d03af45b9284d90c8939b16f3d130d4ecdbad754b989b7. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRGE1700512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5405500e2c605fd86d286ee7f6146c370ed88ff719895de6c69f748ea286154. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRGE1700514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b60a2c54901585b7dc0d0d268a4c2a6c0174dbf99a55fa8551f86263b7996a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRGE1801400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c01721a448a395be0114ddbb4962dd5c048a32d680de3fecc5276c436e8fbc4. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXNLH1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d132b78491c00071d4920edcef4b07c223428b31f6083a8931ee34fe9590d7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXG1U2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427d0d41a2c8a30eb04857adda4cc009359cf94173a6d6a258abbf2da535e449. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXG1U2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e24310c76b050b85b997be9108311d60f6b555386d9a262a84d83ed917a3e34. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXG1U2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6a29af143146cc9f1b03fab0b3261cdd809e39ec4b6707fca73a714a257307. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXG1U2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd36338dcac1fcf91a18b5668fc54e6b88a13e9ad0d54ccbbc3846062777916. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXG1U1400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3bdce5036620aaf9cb3a4fad84f9f951dea64617ec7a0b2c7efe8aa6ab45d9. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXG1U2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7607949c5bb5a3632c82fc6d5dae3fa924c7982fe6aeaed540e5c798185d19d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRECI1800038.